Thesen zur Fortentwicklung des Rundfunksystems
In: Rundfunk und Fernsehen, Jg. 29 H. 4, S. 466-473To get a bit of information may be as hard as to get full information
In: IEEE transactions on information theory, Jg. 27 H. 4, S. 398-408Two modes of thinking - also relevant for the learning of mathematics?
In: For the learning of mathematics, Jg. 2 H. 2, S. 38-45